Arriving on a resort muscovites - circus artist Gurov and professor Fedorov are forget the houses of passport. Girl-dispatch on mail, hurrying on an appointment, mixes up envelopes, that entails the row of the comic misunderstanding.

Mikhail Rostovtsevas Nikolay Nikolayevich Gurov, shoe factory director
Vera Streshnevaas Elena Gurova, his wife
Boris Petkeras Leonid Sergeyevich Fyodorov, professor
Andrei Kostrichkinas Receptionist at the 'Metropol'
Mariya Barabanovaas Nina, postal manager in Moscow
Aleksandr Beniaminovas Telegraph operator
Pyotr Andriyevskyas Bank manager (uncredited)
Andrei Apsolonas Circus attraction worker (uncredited)
Arnold Arnoldas Svirepov, circus attraction administration (uncredited)